228262469 has 4 divisors (see below), whose sum is σ = 228608460. Its totient is φ = 227916480.

The previous prime is 228262453. The next prime is 228262471. The reversal of 228262469 is 964262822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964262822 = 2 ⋅482131411.

It can be written as a sum of positive squares in 2 ways, for example, as 134908225 + 93354244 = 11615^2 + 9662^2 .

It is a cyclic number.

It is not a de Polignac number, because 228262469 - 2⁴ = 228262453 is a prime.

It is a super-2 number, since 2×228262469² = 104207509507951922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228262439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172004 + ... + 173325.

It is an arithmetic number, because the mean of its divisors is an integer number (57152115).

Almost surely, 2^228262469 is an apocalyptic number.

It is an amenable number.

228262469 is a deficient number, since it is larger than the sum of its proper divisors (345991).

228262469 is an equidigital number, since it uses as much as digits as its factorization.

228262469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345990.

The product of its digits is 165888, while the sum is 41.

The square root of 228262469 is about 15108.3575877724. The cubic root of 228262469 is about 611.1458075201.

The spelling of 228262469 in words is "two hundred twenty-eight million, two hundred sixty-two thousand, four hundred sixty-nine".